Leather polishing apparatus



March 1, 1938. M. A. BUCKLEY I LEATHER POLISHING APPARATUS Filed Dec.30, 1935 2 Sheets-Sheet l l L M 5% W. a A

March 1, 1938. M, A. BUCKLEY LEATHER POLISHING APPARATUS Filed Dec. 50,1935 2 Sheets-Sheet 2 RN 2: v

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Patented Mar. 1, 19 38 EJETED STTES PATENT OFFICE LEATHER PGLISHINGAPPARATUS Milford A. Buckley, Olean, N. Y., assigncr to Carley HeaterCompany, Inc., Olean, N. Y., a corporation of New York ApplicationDecember 30, 1935, Serial No, 56,829 Claims. (01. 149- -15) The presentinvention relates to leather polishjacent the longitudinal center of theframe, and ing apparatus. a like support it interconnecting the oppositeA primary object of the present invention is end supports l3intermediate the sides of the the provision of a leather polishingapparatus frame. The frame also includes opposite end 5 which is simpleand inexpensive in construction, vertical supports l1 and a verticalsupport I!!! and which is efficient and speedy in operation. between theopposite ends of the frame.

A further object of the invention is the provi- The numeral l9designates a polishing roll sion of a leather polishing apparatus whichcomwhich, in accordance with the invention, is prefprises a polishingroll, a conveyor or feed roll, erably constructed of woolen disks asindicated 10 and a kick-oif brush cooperating with the polin Fig. 1,each of the discs preferably being con- 10 ishing roll; and separateadjustable driving structed of small pieces of sample wool as is inmeansfor the polishing roll, the feed roll, and (heated in Figt s s being a nd to a the kick-off brush. Wood core as indicated at 20 in Fig. 3. Thepolish- A still further object of the invention is the ing roll may,however, be constructed of wool provision of a leather polishingapparatus comcloth suitably secured to the shaft later referred 1 5prising a power-driven polishing roll, an adjustto.

able power-driven feed roll for presenting leather The roll I9 issupported by a shaft 2| which at to the polishing roll, and a chute forreturning one end thereof is journalled in a bearing 22 and the polishedleather to the operator. which inwardly of the opposite end thereof is Astill further object of the invention is the journalled in a bearing 23.Each of the bearings 20 provision of a leather polishing apparatus com-22 and 23 is adj b y pp d on t e t readed prising cooperating polishingand feed rolls which studs 24 projecting downwardly from a bearingare ofimproved construction for assuring accusupporting bracket '25 which issuitably secured rate feed of the leather as well as 'a uniform fintothe supports [5. The bearings 22 and 23 can 25 ish to the surfacethereof. A still further object readily be adjusted up p p tu ng of the25 of the invention is the provision of a leather poluts 2 On the tuds24 w e y the polishing r011 ishing apparatus embodying novel cooperating9 can be P p y adjusted W p to the elements to secure uniformity ofpolish on the feed roll, later described, as may be occasioned asleather and adjustable means for varying the h urface thereof becomesworn.

so degree of polish. The shaft 2i extends beyond the bearing 23 and Theinvention consists in the improvements as Su ta y S d theTetO externally0f t e hereinafter describedand claimed. frame a belt-wheel 21 which isoperatively con- In the accompanying drawings, forming a part nected bya pair of V-belts 28 with a smaller beltof this specification: Wheel 29which is carried by the outer end of the Figure l is a front elevationalview of a pre- Shaft 11 Of a motel pp r on a Suitable 3'5 ferredembodiment of the present invention; base 32.

Figure 2 is a left-hand end elevation; and e meter 3 s p e y of three(3) horse Figure 3 is a right-hand end elevation of the power and hassuificient velocity to drive the roll construction illustrated inFigure 1. it at a velocity of substantially 850 revolutions The samenumerals of reference are used to D u 4O designate like andcorresponding parts in the In Ord o p v e Sufficient driving tension invarious figures on the drawings. the belts 28 as well as to provide foreasy re- The frame by which the various operating and placement thereofthe motor base 32 is preferably driving elements are supported may beconadjustably mounted in the frame which may-be of 4-5 structed ofrelatively heavy wood pieces or it may any suitable construction andwhich as illustrated be constructed of angle-iron. The frame asilpreferably comprises guide-ways 33 in one of the lustrated isconstructed of the former and comrear corner posts !4 and in the supportI 8, in prises vertical corner posts IE, top, intermediate, whichguide-ways are slidably disposed guides and bottom horizontal endsup-ports H, i2 and 34 on the base 32, the base being secured in any 5!3,respectively, at the opposite ends of the frame, adjust d p s t n ymeans of s 35 a i and a horizontal support it connecting opposite Studs36 pro g thlellgh e ated slots 3? in corner posts at each side of theframe intermethe base 32. diate the top and bottom thereof. The frameThe roll I9 is adapted topolish the surface of further comprises a pairof horizontal supports it the leather which is presented thereto upon ainterconnecting the opposite end supports II adsuitable table 38 havingan opening v39 therein to 55 permit the polished leather to follow thechute, later described, as well as to provide operating space for thepropelling or feed roll 40.

The feed roll is mounted vertically below the polishing roll I9 and isco-extensive in length therewith. The feed roll preferably comprises acork-covered cylinder suitably secured to a shaft M which, at oppositeends thereof, is journalled in bearings 42, each of which is supportedby a base 43 slidably disposed in a guide-way 44 in one of the supportsII. Secured to the right hand end of the shaft 4I exteriorly of theframe is a relatively large sprocket-wheel 45 in driving engagement witha roller-chain 45, which chain engages a small idling sprocket 41 and isdriven by a small sprocket 48 fixed on the shaft 49 of a motor 50.

The motor 50 need only be of about three quarter horse power to drivethe feed-roll, which has a velocity of only about ten, (10) revolutionsper minute.

The feed-roll 49 is adapted to be raised and lowered in the operation ofthe machine, and this is effected by means of improved mechanism whichnot only raises and permits lowering of the roll but provides for anadjustable uniform pressure on the leather being polished. The roll 45.is manually raised by means of a foot-treadle EI comprising alongitudinally disposed slat 52 supported adjacent each end thereof byone end of a bar 53 whose opposite or inner end is pivotally connectedat 54 to an ear 55 projecting downwardly from the support I6. Pivotallyconnected at 55 to the support I6 adjacent each end thereof is abell-crank lever 51, one arm of which is pivotally connected at 58 to anadjustable link 59 and the other arm of which is pivotally connected at6!! to one end of a link BI whose opposite end is pivotally connected at62 to the adjacent bar 53 outwardly of the pivotal connection 54. Thelinks 59 are pivotally connected at 63 to the respective bearings 42.

This construction provides a simple and efficient means for raising thefeed roll 40 into engagement with the leather as it is pushed forward onthe table 38 for compressing same between the rolls I9 and 4E! andfeeding same forward during the polishing action of the roll I9.

A coil spring 54 is preferably connected with the treadle and the frame,as indicated in Fig. 3, to normally hold the feed roll in inoperativeposition.

In order to provide a uniform pressure on the leather being polished anadjustable stud E is carried by the slat 52 adjacent each end thereofand is adapted to engage a stop 66 when the feed roll is fully elevated,as is illustrated in Fig. 3. The studs 65 are provided with adjustingand securing nuts 61 and 68. In order to effect further adjustment ofthe feed roll the adjustable links 59 may be shortened or lengthened.These adjustments in the feed roll actuating means further provide forvarying the pressure on the leather for effecting different degrees ofpolish as may be desired on different grades of leather.

When the feed roll is in lowered or inoperative position the chain 46will be slack and in order to provide sufiicient driving tension in thechain when the feed roll is in raised operative position the idlingsprocket 41 is carried by a block 69 vertically movable in a guide ID ina bracket II disposed on the right-hand support I2, the block beingretained in adjusted position by means of a bolt I2.

In order to prevent adherence of the leather to the roll I9 as well asto deflect the same toward the return chute, later described, a kick-offbrush I3 is provided.

The rotary brush I3 is carried by a spindle or shaft I4, which shaft isjournalled at opposite ends thereof in bearings 15 fixed to opposite endsupports I2.

Secured to the shaft I4 inwardly of the adjacent end of the frame is abelt-wheel I6 operatively engaged by a pair of V-belts II which enageand are driven by a smaller belt wheel I8 fixed to the shaft 2I inwardlyof the main drive belt-wheel 2'! carried thereby.

In order to provide sufficient driving tension in the belts II the sameare engaged by an idle roll I9 suitably journalled on a block 80vertically movable in a guide-way 8I in a bracket 82, the block beingretained in adjusted position by means of a bolt 83.

In order to protect the operator against injury from flying particlesfrom the roll I 9 as well as the roll itself, a sheet metal guard 84 issuitably secured at the upper edge thereof as by hinging to one of thesupports I5, as indicated at 85 in Fig. 1, and securing the lower edgethereof in slightly spaced relation to the table 38 by brackets 86.

The invention comprises an improved means for returning the polishedleather to the operator and which, in a preferred form, comprises asheet metal chute 81 which is preferably secured at the upper edgethereof to one of the supports I5, as indicated at 88, and which issuitably secured at the lower edge thereof to a longitudinally-disposedstrip 89 adjacent the slat 52 of the treadle 5|.

The chute 81, as is clearly illustrated in Figs. 2 and 3, is concavedtoward the operator and has sufiicient inclination to permit thepolished leather to fall by gravity to the feet of the operator. Thechute 8'! is co-extensive in width with the length of the rolls I9 and40 as well as the brush I3, and is preferably provided with lateralguide-flanges 9B. In the operation of the construction disclosed theleather is placed upon the table 38, whereupon the operator presses thetreadle 5| down until the studs 65 engage the stops 66, and the feedroll 40 will, through the linkage above described, be brought intoengagement with the leather and will compress same against the polishingroll I9 and feed the same uniformly toward the kick-off brush I3. Thekick-off brush will release the leather from the roll I9, whereupon itwill fall onto the chute 81 and return to the operator.

The cork-covered feed roll is not only yieldable but affords sufficientfrictional engagement with the leather to uniformly and consistentlyfeed the same forward, and the woolen disc polishing-roll presents ahighly effective finishing surface to the leather being treated. As thefeed roll rotates only about ten revolutions per minute while thepolishing roll rotates about eight hundred and fifty (850) revolutionsper minute or eighty-five (85) times as fast as the feed roll, thesurface of the leather will be subjected to an effective polishingaction by the roll I9.

From the foregoing description, it will be seen that the improvedmachine in accordance with the present invention is highly efficient inoperation as well as being capable of polishing leather rapidly, andthat the machine embodies such adjustments as to assure such efficiencyin operation even after long periods of use.

While I have disclosed a single specific embodiment of my invention,nevertheless it is to be understood that the same is to be considered asillustrative and not restrictive, the scope of the invention beingdefined in the subjoined claims.

What I claim and. desire to secure by U. S. Letters Patent is:

1. Leather polishing apparatus comprising a rotatable polishing roll, arotatable feed roll for cooperation with the polishing roll, a rotarybrush cooperating with the polishing roll for deflecting therefrom theleather being polished, a pair of power units, drive means for thepolishing roll and rotary brush jointly driven by one of said powerunits, drive means for the feed roll driven by the other of said units,and means for adjusting the tension in all of said drive means.

2. Leather polishing apparatus comprising a rotary polishing roll havinga drive shaft, a rotary brush having a drive shaft, a pair of beltpulleys fixed to the polishing roll shaft, a belt pulley fixed to therotary brush shaft, a motor having a belt pulley fixed to the driveshaft thereof, flexible drive means operatively associated with the beltpulley on the motor and one of said belt pulleys on the polishing rolldrive shaft, flexible drive means operatively associated with the otherof said belt pulleys on the polishing roll drive shaft and the beltpulley on said brush drive shaft, and means individual to said flexibledrive means for adjusting the tension thereof.

3. leather polishing apparatus comprising a polishing roll and a feedroll for continuously presenting leather to the polishing roll, saidpolishing roll having an operating surface formed of wool and said feedroll having an operating surface formed of cork.

4. Leather polishing apparatus comprising a frame, a horizontal tablesupported by the frame intermediate the top and bottom thereof andhaving an opening therein, a polishing roll and a cooperating kick-offbrush each rotatably mounted above the table, a feed roll rotatablymounted below the table in vertical alinement with the polishing rolland projecting through the opening in said table, means for driving thepolishing roll, the kick-off brush and the feed roll, said polishingroll being rotatab-ly journalled in bearings adjustab-ly supported bybrackets depending from the top of said frame, and said feed roll beingrotatably journalled in bearings slidably mounted in said frame belowsaid table, and means for successively positioning the feed roll inoperative and. inoperative relation with the polishing roll.

5. Leather polishing apparatus comprising a frame, a horizontal tablesupported by the frame intermediate the top and bottom thereof andhaving an opening therein, a polishing roll and a cooperating kick-offbrush each rotatably mounted above the table, a feed roll rotatablymounted below the table in vertical alinement with the polishing rolland projecting through the opening in said table, means for driving thepolishing roll, the kick-off brush and the feed roll, said feed rolldriving means comprising a power unit, a chain operably engaged withsaid feed roll and said power unit, an adjustably mounted idler sprocketengaging said chain, and means for successively positioning the feedroll in operative and inoperative relation with the polishing roll.

MILFORD A. BUCKLEY.

